Click here to access Lovejoy's Digital Parts Catalog (Beta) for C Type components.
A full C Type coupling is comprised of 4 parts: 2 cast iron hubs, 1 elastomeric cushion set (SOX, Hytrel®, or Bronze), & 1 collar w/ hardware.
| Max Bore | Spider Material |
| | | SOX (NBR) Torque | Urethane Torque | Hytrel® Torque | Bronze Torque |
Size | in | Mm | in-lbs | Nm | in-lbs | Nm | in-lbs | Nm | in-lbs | Nm |
C226 | 2.5 | 64 | 2,988 | 338 | — | — | 5,940 | 671 | 5,940 | 671 |
C276 | 2.875 | 73 | 4,716 | 533 | — | — | 9,432 | 1066 | — | — |
C280 | 3 | 76 | 7,560 | 854 | — | — | 13,866 | 1567 | — | — |
C285 | 4 | 102 | 9,182 | 1038 | — | — | 16,680 | 1882 | — | — |
C2955 | 3.5 | 89 | 11,340 | 1281 | — | — | 22,680 | 2563 | 22,680 | 2563 |
C2955 | 4 | 102 | 18,900 | 2136 | — | — | 37,800 | 4271 | 37,800 | 4271 |
Note:
Bronze has a maximum RPM capability of 250 RPM.
Material | Temperature Range | Misalignment | Shore Hardness | Dampening Capacity | Chemical Resistance | Color |
| | Angular | Parallel | | | | |
SOX
(NBR) Rubber - Nitrile
Butadiene (Buna N) Rubber is a flexible elastomer material that is oil resistant,
resembles natural rubber in resilience and elasticity. | -40°F to 212°F (-40°C to 100°C) | 1° | 0.015 | 80A | High | Good | Black |
Hytrel®
- Flexible
elastomer designed for high torque and high temperature operations. Excellent
resistance to oil and chemicals. Not recommended for cyclic or start/stop
applications. | -60°F to 250°F (-51°C to 121°C) | 1/2° | 0.015 | 55D | Low | Excellent | Tan |
Bronze
-
Rigid, porous oil-impregnated metal insert exclusively for low speed (max 250
RPM) applications requiring high torque capabilities. Not affected by extreme
temperatures, water, oil, or dirt. | -40°F to 450°F (-40°C to 232°C) | 1/2° | 0.01 | - | None | Excellent | Bronze |
Note: Cushions are held in place radially
by a steel collar.